OpenXR Remoting fails to attach actions to remoting session in 4.27

UE - Platform - XR - Jul 13, 2021

Regression from 4.26 where actions fail to bind when remoting in 4.27 Repro: using the Microsoft OpenXR Extensions plugin here:https://github.com/microsoft/Microsoft-OpenXR-Unreal/tree/main/MsftOpe ...

Editor crashes if a data table containing an attenuation settings struct

Tools - Apr 19, 2016

Editor crashes if a data table containing an attenuation struct is opened in the data table editor. Frequency: 4/4 Crashreporter: [Link Removed] Regression? (No), issue (does) occur on 4.10.4 ...

Undoing In Blueprint Editor Clears Component Selection

UE - Gameplay - Blueprint - Apr 25, 2016

When editing a value in the details panel of a component, if you attempt to undo the changes, the component is no longer selected. The value gets undone as expected, but it is unexpected that the co ...

Lighting does not properly affect landscapes under another landscape, even if Static Lighting Resolution is increased

UE - LD & Modeling - Terrain - Landscape - Apr 29, 2015

Lighting does not properly affect landscapes that are below another landscape, even after static lighting resolution is increased. This results in some areas that should be completely shadowed to ha ...

Blueprint Viewport Not Updating When Destructible Mesh Component is Assigned a Mesh

UE - Simulation - Physics - Destruction - Apr 18, 2016

When you add a Destructible Mesh to a Destructible Mesh Component inside of a blueprint, the viewport is not updated with the new mesh. If you add the blueprint to the level and then open the bluepr ...

Nanite mesh polygons disappearing when using masked opacity with vertex color in 5.4

UE - Graphics Features - Nanite - Jul 24, 2024

In 5.4.3, a nanite enabled mesh with a material that takes its vertex color (R) and uses it as the opacity mask output in a masked blend mode material, causes the mesh to have disappearing polygons ...

Xcode 8.3.2 fails to successfully build 4.15.1 from source code

UE - Platform - Apple - May 2, 2017

Attempting to build 4.15.1 from source code using Xcode 8.3.2 currently results in the build failing due to warnings that occur in fbxsdk, AlembicImporter, and MetalRHI. ...

Asset Manager settings that worked in 4.26 now have extra invisible broken types

UE - Foundation - Data Pipeline - Cooker - Sep 23, 2021

For 4.27/5.0 (as part of [Link Removed]) we changed the asset manager's settings to be a key-indexed config array which gives more safety with removing entries via the UI. However, this actually bro ...

Launcher and Editor context / dropdown menus do not display correctly on upcoming Windows 10 build

UE - Editor - UI Systems - Slate - Oct 3, 2016

A few users using the Windows 10 Insider Preview have found that after a certain point in the Prerelease builds, starting at 14915 it seems, the Unreal Editor and Epic Games Launcher context menus h ...

[Windows 10] Hitting the Windows key while in fullscreen summons an invisible but still interactive Start menu

Tools - Feb 1, 2018

On Windows 10, pressing the Windows key in a fullscreen UE4 application summons the Start menu beneath the application. However, the Start menu still receives input, which can cause applications to ...